PrimeWire

I read an article about the casts move from Utah to Montana to film this, and future, seasons. They quarantined on site for 2 weeks before filming began. Plus, cast contract’s were given an additional addendum, with a pandemic quarantine requirement clause stating they were not allowed to leave the set at all, for any reason, or they’d be let go/fired; not allowed to return. The clause was inserted to keep everyone from possibly contracting the virus from outside extra sources. Sure, perhaps a bit extreme, but, likely necessary per the 8 months it takes to film the episodes. Had they not added this protocol and 1 or 3 or 7 cast members came down with the virus, they’d need to postpone production and push the season 4 premiere back till 2022. I would think that since you saw him on the new drama of Invasion, 1 of 2 options factor in: he likely left sometime during the season filming, or, after they wrapped filming.